EMERGENCY DRIVE CHASSIS EXTENSION Russian patent published in 2022 - IPC B64C25/22 B64C25/30 

FIELD: emergency systems of passenger aircrafts.

SUBSTANCE: invention relates to emergency systems of passenger aircraft. Aircraft undercarriage emergency drive comprises a pump (1) of the first subsystem, mechanically connected by a shaft (2) to a hydraulic motor (3) of the second subsystem, a check valve (4) and a throttle (5). The hydraulic motor (3) is connected to the power supply of the second subsystem. The throttle (5) is configured to convert the pressure in the pump discharge line into the control pressure of the multi-position throttling hydraulic distributor (6), changing the balance of forces on its plunger, the stroke of which is limited by a spring. The multi-position hydraulic distributor (6) is configured to change the supply of the working fluid to the hydraulic motor 3, which provides the corresponding pump drive, in case the balance of forces on the plunger is disturbed.

EFFECT: increase in speed is achieved.

1 cl, 1 dwg